Dumping-wagon



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J. S. FIELD & W. J. SHEDD.

y DUMPING WAGON. No. 482,731. Patented Sept'. 20, 1892.

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JOI-IN S. FIELD AND W'ILLIAM J. SI'IEDD, OF CHICAGO, ILLINOIS.

oUMPiNG-WAGON.

'a' `SPECIFICATION forming part of Letters Patent No. 482,731, datedSeptember 20, 1892. Application inea June 3,1892. serai No. 435,360. et@model.)

VTo all whom it may concern:

' cation. y

This invention relates mainly to the construction of the dumping bottomsections or leaves of this class of wagons and incidentally to thedevices for raising the sections and for supporting them when raised.

The invention consists in a dumping-wagon having its bottom divided intothree longitudinal sections, the outside ones of which are hinged attheir outer edges and swing down at their inner edges and the centralone is pivoted at its ends so as to tip sidewise.

The invention further consists in the novel features hereinafterdescribed, and particularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification,and in which similar letters of reference indicate like parts, Figures land 2 are side elevations of our improved wagon. Figs. 3 and 4 aretransverse sections on the line 2 2 of Fig. 2. Fig. 5 is a detailshowing the operation of the rocking cross-bars, and Fig. 6 is a detailshowing the device for locking one of the handllevers.

In the drawings, A represents the sides of the wagon-body, and D theend-boards of the same.

l5 and C C represent the folding leaves or sections forming the bottom.These are each formed, preferably, of sheet metal, stiffened by T orangle irons a, running longitudinally to the sections and secured totheir under surfaces. The middle section B is pivoted at its ends uponpivots b, located at one side of the center line of the section, so thatitwill tip readily upon such pivots. The latter are journaled in theplates d, attached to the ends D of the box. The side sections C areeach hinged to the sides of the boX, as shown at c, so that their inneredges will swing downward, as indicated by the broken lines in thedrawings. The central section B is also indicated by the broken lines inits tipped position. 1t is made Wide enough to lap over and form a tightjoint with the side sections,

as clearly indicated, so that a close floor is formed by the three, andit will be noticed that when opened they will give full egress to thematerial carried in the Wagon and do not afford lodgment for any portionof it, every part of the floor being tipped or swung into a vertical orsubstantially vertical position when the load is dumped. When raised soas to close the door, these movable bottom sections are supported ateach end by crossbars E, moved into position under the bottom sectionsby levers, which may be operated by the driverfrom the seat and whichwill now be described. The cross-bars are pivoted to the sides of thewagon-body, as shown at e, and they are rocked on such pivots by leversF, one of which is connected by a short link f to the lower end of thehand-lever G, pivoted to the side of the wagon-body at g, and the otherof said levers F is connected to the hand-lever by a long link 7i,joined to the hand-lever above the pivot g. It will be noticed that ifthe hand-lever is moved in one direction the cross-bars E will be rockedaway from the floor-sections, so as to free the latter and allowthem todump, and that if said lever is moved in the other direction both thecross-bars will be forced under the floor-sections, so as to sustainthem in the raised or closed` position. A gnard-iron H, attached to theside-board of the box, contines and guides the upper end of thehand-lever, and in conjuction with the catch t' and spring t serves tolock the hand-lever against any accidental return of the cross-bars totheir acting position after a dump has been made. The cross-bars E,which are preferably formed of angle-iron, are adapted not only tosupport the floor-leaves, but also to lift them to their proper positionin case they should fail to be entirely raised by the lift-1 ing devicesor in case they should become sprung. This latter function is due totherocking movement which the bars have around the curved ends a of thewebs of the stiffening-irons carried by the door-sections. This actionis clearly illustrated at Fig. 5. Supposing the Wagon to be loaded andready to be dumped, the driver moves the lever G from the position givenat Fig. 2 to that indicated by the broken lines in said ligure. Thiscarries the cross-bars ont from under the bot- IOS torn sections, sothat the latter will then dump automatically by their own gravity andthat of the contents of the wagon. After the discharge of the load thedriver raises the floorsections again by suitable devices, a preferredconstruction of which is as follows: J is a rocking shaft journaled inthe sides of the box and operated by suitable levers, as hereinafterdescribed. This shaft carries arms j 7c, from which chains j and 7cextend to the Hoor-sections and are attached to the latter near theedges which swing downward in dumping. It will be understood from whathas been described that by rocking the shaft J these chains will bedrawn upon, and thus return the floor-sections to their horizontalposition. In this operation the center section is timed by shorteningits chain or by extending its arm lo at a different angle to moveslightly in advance of the side sections, so

, that the latter may come up into position under the edges of theformer. The lever ysystem by which this rocking shaft J is obtained ispreferably attached to the other side of the wagon from that carryingthe lever system by which thesupporting-bars are operated, and consistsof a hand-lever L, pivoted at m and joined by a pitman M to a crank-arrnN upon the end of the shaft J. After lever L and its connections havebeen employed to raise the hoor-sections, in which theyare moved fromthe position given in full lines to that given in broken lines in Fig.1, they are returned to their starting positions, so that the chainsthen rest on the floor of the wagon, as illustrated at Fig. 4:. In thepractical operation of the wagon if the lifting-chains do not bring thefloor-sections into their correct positions, as will frequently be thecase, the supporting crossbars when moved under them compel them toraise as much as may be needed to bring them to their proper level andin close junction with each other. It is desirable that the swing of theside sections when dumping be limited, and for this purpose we provide aguard-chain O, attached to their swinging edges and of a p roper lengthto prevent their moving too far, each of these sectionsbeing thus causedto exert a restraining influence upon the other. This chain dependsbelow the wagon when the ioor is closed, as shown.

We claim- 1. The dumping-wagon having its bottom divided into threelongitudinal sections, the outside ones of which are hinged at theirouter edges and swing down at their inner edges and the central one ispivoted at its ends, so as to tip sidewise, substantially as specified.

2. The dumping-wagon having its bottom divided into three longitudinalsections, the outside ones of which are hinged at their inner edges andthe central one of which is pivoted at its ends, so as to tip sidewise,and also having movable supporting devices for lock'- ing the sectionsin the raised position, substantially as specified.

3. The combination, in a dumping-wagon, of three longitudinalfloor-sections, the outer ones of such sections being hinged so as toswing downwardly at their inner edges and the central section beingpivoted at its ends and adapted to tip sidewise, movable supporting-barsfor supporting said Iioor-sections in their raised position, devices formoving said bars into and out of their acting positions, and devices forraising the floor-sections, substantially as specified.

4. The combination, in a dumping-wagon, of three longitudinal oorsections each adapted to tip sidewise, essentially as described, thecentral section overlapping the edges of the side sections, means forraising said sections after dumping, and means for supporting thesections in the raised position, substantially as specified.

5. In a dump-wagon havinga floorconsisting of three longitudinalsections, whereof the side sections are hinged at one edge and swingdownward and the center section is pivoted at its ends and tipssidewise, the combination, with the side sections, of the chain O,secured to said sections and limiting their downward movement,substantially as specified.

JOHN S. FIELD. WILLIAM J. SHEDD. Witnesses:

H. M. MUNDAY, L. E. CURTIS.

